Update README.md

Author: luyongfugx

README.md

@@ -1,7 +1,13 @@
 # flutter_ocr
 
-A new Flutter application.
+flutter_ocr是用flutter开发的使用百度api进行文字识别的拍照取字软件。
 
+包含了拍照，旋转，放大，拖拽来选取合适的大小和角度来截取要识别的图片内容。
+
+<img src="https://raw.githubusercontent.com/luyongfugx/flutter_ocr/master/images/demo1.jpg" width="200">
+<img src="https://raw.githubusercontent.com/luyongfugx/flutter_ocr/master/images/demo2.jpg" width="200">
+<img src="https://raw.githubusercontent.com/luyongfugx/flutter_ocr/master/images/demo3.jpg" width="200">
+<img src="https://raw.githubusercontent.com/luyongfugx/flutter_ocr/master/images/demo4.jpg" width="200">
 ## Getting Started
 
 For help getting started with Flutter, view our online